Spakk-arbestek



- is a vertical section.

unire s SPARK-ARRESTER.

Specification of Letters Patent No. 5,538, dated April 25, 1848.

To all whom t may concern.'

Be it known that I, PATRICK CoNNnnLnY, of the city of Cincinnati, in thecounty of Hamilton and State of Ohio,- have invented a new and usefulImprovement in the Construction of Spar t-rresters for Locomotive andother Engines, which is described as follows, reference being had to theannexed drawings of the same, making part of this specification Figure lis a perspective view. Fig. 2 Fig. 3 is a top view. Fig 4 is ahorizontal section on the line of Fig. Q, the cap being removed from thesmoke pipe and jacket. Fig. 5 is a vertical section of the cap. Fig. 6is a side elevation of the cap. Fig. '7 isa bottom view of the cap, atop view being shown in Fig. 8.

Similar letters in the several figures refer to corresponding parts.

The smoke pipe A and the external jacket B surrounding the smoke pipeand forming a receiver for the sparks are made and arranged in the usualmanner.

My improvement consists in making the cap, or spark arrester C, in theform of the flower called the devils trumpet (Brugmcmsz'a arborea) andperforating the leaves C with a number of small perforations throughwhich the smoke is to pass, but not the sparks, said leaves being closedat their lower ends where they are combined with an inverted centralconical core D attached t-o the small end of the trumpetshaped cap C inthe manner represented in Figs. 2, 5, 6, and 7 and the upper ends openand united to the under side of the trumpet shaped 'cap plate 0 which ismade with a seriesof openings in the form of the leaves of the flowerabove named; and which openings the said perforated leaves are arrangedin the manner represented in Figs. 2, 3, 5J G, and 7. Said cap platehaving a series of circular openings E around the outer edge of the sameover which are placed vertical tubes F open at both ends made fast tothe under side of the cap plate and projecting downward into the spacebetween the smoke pipe and jacket for promoting the draft through thecap and to carry off the smokeMthe said cap having a vertical circularrim C2 around its circumference of suflicient depth to fit over theoutside of the vertical portion of the acket.

The material of which the apparatus is composed is sheet iron, butanysuit-able material may be used.

The sparks in ascending through the smoke pipe strike against the curvedconcave perforated leaves c and are directed over into the space betweenthe sides of the smoke pipe and external jacket, wherein there is nodraft and where they descend to the bottom and are removed through thedoor of the jacket in the usual mannerwhile the smoke passes off throughthe small perforations and circle of tubes. The arrow No. l indicatesthe direction of the sparks. The arrow No. 2 indicates the direction ofthe smoke.

I do not claim the outer case or jacket combined with the smoke pipe,and a reticulated or perforated cap for arresting sparks as this is notnew; but,

That I do claim as my invention and desire to secure by Letters Patentisd The combination of the perforated inverted trumpet shaped sparkarrester C C with the circle of vertical draft tubes F attached to thetrumpet shaped top plate, C, made as above described and represented inFigs. l, 2, 3, &c., forming the cap for directing the sparks into thespace S between the ordinary smoke pipe and outer case where they areextinguished-the smoke and escape steam passing through the smallapertures in the arresters, and through the tubes, and the cinders, orextinguished sparks removed through the door G at the bottom of the caseB.

P. CONNELLEY.

wWitnesses:

WILLIAM P. ELLIOT, A. E. H. JOHNSON.

